<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <form action="">
        <input type="checkbox">小米10  5000 <br>
        <input type="checkbox" >苹果10  3000
    </form>
    
    <script>
        var input =document.querySelectorAll("input");
        
      
       document.onclick=function(){
           if(input[0].checked==true&&input[1].checked==true){
               console.log(true);
           }else{
               console.log(false);
           }
       }

       let cartGoods = [
    {
        goodsname:'小米10',
        price:5000,
        isChecked:true,//代表是否选中了
    },
    {
        goodsname:'苹果10',
        price:3000,
        isChecked:false,//代表是否选中了
    }
]

    
    </script>
</body>
</html>